Australia 0 for 163 (Poulton 104*) beat New Zealand 162 (Martin 25, Perry 5-31) by 10 wickets
Leah Poulton's unbeaten century built on the five-wicket haul of Ellyse Perry as Australia took a 4-0 lead over New Zealand to retain the Rose Bowl trophy. New Zealand's batsmen were again unable to deal with their opponents as they battled to 162 in 48.3 overs and Australia finished the match without losing a wicket.
Poulton opened with Shelley Nitschke (44) and raced to 104 not out in the reply, striking three sixes and nine fours in her 116-ball personal best. Australia's innings lasted only 32.3 overs as the pair dominated the attack.
Perry, the opening bowler, took a couple of early wickets and helped finish off the first innings as she collected 5 for 31. The collection was the best of her short career and also included 12 wides in 9.3 overs. Rene Farrell and Nitschke were effective in giving away less than three an over while Sarah Andrews removed the top scorers Katey Martin (25) and Amy Satterthwaite (22).
Australia have been too strong in the opening four ODIs but New Zealand have a chance to strike in the final one-dayer on Thursday, which is followed by three Twenty20s in Hobart. The results won't affect the direction of the trophy as Australia entered the series in possession of the prize and only needed to draw to hold on to it.